def __init__(self,filename = DataBaseFile):
"""
Constructor to open the materials definition file and read in the
data to self.data as a list of lines.
The database is only loaded once.
param filename the database (defaults to package default)
"""
global DataBase
if DataBase == None :
try :
filename = getExpandedFilename(filename) # Sort out logicals
filestream = open(filename,"r")
DataBase = filestream.readlines()
filestream.close()
except :
print("materail.MaterialData() unable to open data file {0:s}".format(filename))
raise IOError("optics: Unable to run without materail data")
def main():
d = t.getString("Dir")
d = t.getExpandedFilename(d)
for filename in os.listdir(d):
t.tprint(filename)
def __init__(self,fn = None):
"""
Read in the lens from specified file.
param fn the name of the lens file
If the filename does not end in lens then ".lens" is appended
"""
Lens.__init__(self,0.0) # Create a blank lens
#
# Open file, if None then prompt via tio interface
#
if fn == None:
lensfile = tio.openFile("Lens file","r","lens")
else:
fn = tio.getExpandedFilename(fn) # Sort out logicals
if not fn.endswith("lens"): # Append ".lens" if not given
fn += ".lens"
lensfile= open(fn,"r") # open file
# read file and process one line at a time
#
for line in lensfile.readlines():
line = line.strip()
if not line.startswith("#") and len(line) > 0: # Kill comments and blanks
token = line.split()
if token[0].startswith("title"): # Deal with title
self.title = str(token[1])
elif token[0].startswith("point"): # Deal with Po
v = eval(token[1])
self.setPoint(v) # Set point
elif token[0].startswith("iris"): # Iris aperture
p = float(token[1]) # z-position
r = float(token[3]) # radius
s = sur.IrisAperture(p,r,1.0)
self.add(s)
elif token[0].startswith("circular"): # Circular aperture
p = float(token[1]) # z-poistion
r = float(token[3]) # radius
s = sur.CircularAperture(p,r)
self.add(s)
elif token[0].startswith("annular"): # Annular aperture
p = float(token[1]) # z-poistion
inner = float(token[3]) # inner radius
outer = float(token[4]) # outer radius
s = sur.AnnularAperture(p,inner,outer)
self.add(s)
elif token[0].startswith("spherical"): # Spherical surface
p = float(token[1]) # z-position
c = float(token[3]) # curvature
r = float(token[5]) # max radius
if token[6].startswith("index"): # refrective index
index = mat.MaterialData().getIndex(token[7])
s = sur.SphericalSurface(p,c,r,index)
elif token[6].startswith("mirror"): # else its a mirror
s = sur.SphericalSurface(p,c,r)
else:
raise IOError("inknow type")
self.add(s)
elif token[0].startswith("parabolic"): # Parabolic
p = float(token[1])
c = float(token[3])
r = float(token[5])
if token[6].startswith("index"):
index = mat.MaterialData().getIndex(token[7])
s = sur.ParabolicSurface(p,c,r,index)
elif token[6].startswith("mirror"):
s = sur.ParabolicSurface(p,c,r)
else:
raise IOError("inknow type")
self.add(s)
elif token[0].startswith("quadric"): # Quadric
p = float(token[1])
c = float(token[3])
e = float(token[5])
r = float(token[7])
if token[8].startswith("index"):
index = mat.MaterialData().getIndex(token[9])
s = sur.QuadricSurface(p,c,r,e,index)
elif token[8].startswith("mirror"):
s = sur.QuadricSurface(p,c,e,r)
else:
raise IOError("inknow index ")
self.add(s)
else:
print("Unknown token : " + str(token[0]))
lensfile.close() # close file